20603225004 has 36 divisors (see below), whose sum is σ = 51068440584. Its totient is φ = 6463755776.

The previous prime is 20603224969. The next prime is 20603225009. The reversal of 20603225004 is 40052230602.

It is not an unprimeable number, because it can be changed into a prime (20603225009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2967009 + ... + 2973944.

It is an arithmetic number, because the mean of its divisors is an integer number (1418567794).

Almost surely, 2^20603225004 is an apocalyptic number.

It is an amenable number.

20603225004 is an abundant number, since it is smaller than the sum of its proper divisors (30465215580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20603225004 is a wasteful number, since it uses less digits than its factorization.

20603225004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940994 (or 5940975 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20603225004 its reverse (40052230602), we get a palindrome (60655455606).

The spelling of 20603225004 in words is "twenty billion, six hundred three million, two hundred twenty-five thousand, four".